Improvement in axle-boxes for carriages



G. lB.- DURKEE.

Carriage Axle-Box.

Pafemed May 17, 1870.

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Letters Patent No. 103,161, datedMay Yli', 1870.

IMPROVEMENT IN AXLEf-BOXES FOR CARRIAG-ES. 4

The Schedule referred to` in these Lettera Patent-and making part cf the same.

, boxv of the hub', secured "to the end of the hub with interposed packing, and arranged witha cap, forming anoil receptacle, and inclosin'g the end of the journal.

Third, in constructing this cap with a steel center, for the end'of the-journal to bear against, toprevent inward movement of the wheel ou the journal, whereby the necessity of a shoulder for thc purpose at the inner end of the hub is dispensed with, and the wear consequent therefrom is resisted by a steel surface, which can he readily replaced should it become worn out.

In the accompanying drawings- Figui-e1 is alongitudinal section.

Figures 1I and-III are cross-sections, respecti rely, in lines x x and y y. i

Like letters of referencedesignate like parts iu each ,ofithc figures, f

A represents thehub cfa wheel 5 B, the ax1e-box therein ,1 and i G, the journal-oraxle, provided with the usual nut vc at the outer end, and a groored collar, c'f at -thc in- -ner end;

(lis arubbcr ring, clamped to the end of the box by means ofthe anged rim E, and snugly `fitting the axle, so as to prevcntfthe outward escape `of the oil,

the bore of the vbox at the. inner end being enlarged, so as'to permit the rubber, as the wheel is slid ou the axle, to assume the inclined position shown.

In the groove of the collar c' is arranged a ring of leather, f, packing outward againstthe ange of rim ILand preveutingthe ingress of dirt to the rubber ring d, which itwouldsoon wear away were no su'ch lmeans of excluding it provided.

` Gr` is a langedror iiatteued nut, sc rewing on the outer end of the box, and fastened tothe end of the hub by screws g, a rubber ring or packing, 7:, being interposed betweenthe nut and the hub.

I is a cap, fitting within the hub band j, with its edge pressing against the` packing t', arranged lin a groove in the periphery of the uut' G. t

uis the steel bearing-surface, secured to the center of the cap onthe inside by screwing therein, orin any other suitable manner, as clearly' shown. Itmay be `made adjustah1c,or not, as desired. i

When the cap is arranged and secured iu` place, the

box'sbould be but a. little greater than the length of the nut, so as vto allow. ofv only the necessary play for .i the Wheel on the axle.`

purpose hereinhetbre set forth. distance between this steel surface and the end `of the 4 The capI is secured to the nut by screws m, the ends of which abut against the packing h.

To render the screw-holes in the cap oil-tight, I

prcfer'to employ-an outer plate or disk', O, and an .intex-posed annular packing, s, the screws '1n passing from the outside through both disk, packing, and cap, as clearly shown. I

The oiling of the journal is effected hy simply rcmoving one of the screws m, and introducing the lubricating material, through the hole thereof, into thc chamber P, formed by the cap, the packing h preventing the passage of the oil through the screw-hole in the nut G to the end of the hub.

It is well known that the inclination or dish of the wheel causes it 't tend to work inward on the axle, so as to cause, considerable wear .ou the inner shoulder, usually employed to prevent this inward movement. It is also well known that the -oil or other lubricating material tends to work outward, leaving'the inner shoulder, when one is employed, dry, while the rest of the axle may be suicieutly lubricated.

Bythc use of my improvements I am enabled to dispense with the use of such inner shoulder, and to bring thc wear and friction against astecl surface which can be readily replaced or adjusted if it should become worn, and which is located ata point where it isV certain to be kept perfectly lubricated.

The nut G and packing keeps the box securely in place, protects the 4end-ot' the hub, and furnishes a means, incomhinatiou with screws m, for securing the cap in-place.

The rubber and 'leather packing-rings (l j, at the opposite end of the hub, keep that clean, while'the combination of both devicesfenables the journalto be kept freely lubricated, without the possibility of the material escaping and soiling the ends of the hub or clothing which may accidentally come in contact Vtherewith I do not claim forming an oil-cup or 'reservoir at the end of the hub by means of a cap, nor of yintroducing the lubricating materialthrough a hole formed therein but N Vhat I claim as my inventiou'is- 1. The colnbination of the rubber ring cl, the flanged .rim E, and leather packing f, arranged wit-h the axle O und box B; as and for the purpose hereinbefore set forth. A

r.The nut Gand packing h i, arranged withthe cap I, outer plate 0, packing-ring s, and screws m, as and for the purpose hereinbefore set forth. 1

3. The steel surface u of the cap, arranged asa bearing for the end of the journal, to prevent the inward movement of the wheel thereon, as and for the GEO. B. DURKEE. Witnesses:

Jinx HYATT,

J No. J. BONNER. 

